I think that it is incredibly unfortunate that you are unaware that every body is different and therefore will experience anything differently. Some people's bodies are acutely aware of changes very quickly and will have stronger, faster reactions than others- it is NOT unreasonable that this woman felt a difference in her body immediately after inserting a hormone charged device into an orifice lined with mucous membranes- these are incredibly vascular tissues and therefore have the capacity to deliver hormonal contents throughout the body very rapidly. I, too, noticed changes in my body very quickly upon using the ring; it wasn't severe, a bit of nausea, moodiness, and a general sense of wrongness all within the first few days that made me consider taking it out and telling my boyfriend it was baggies or babies, but the idea of condom-free sex lured me into waiting out the first three months, wherein the noticeable changes subsided almost entirely. It's been about eight months since I've been using it and, if you'd asked me a week ago if I was happy with it, I'd have said 'yes, in spite of having niggling concerns over using hormones in my body at all, it's been very helpful in keeping me on the slippery-er side of sex'; but then, I'm on here now, aren't I? And THAT is because, in spite of finishing a normal period two weeks ago, I've been bleeding lightly for the last five days, which has made me do a bit of wondering. In my wondering (and bringing the topic up with my boyfriend) I've pieced together that my libido has diminished a fair bit over the last year and, in spite of just getting back from a two month tropical vacation, I'm still not as nice a person as I was before I started on The Nuvaring, and I think that these changes may be related to that event. In any case, I'm going to finish with the two that I have left and then let my body go back to her natural rhythms, as she is so good at doing.